Meat-block surfacer.



1.M.& W. H. DENSMORE.

MEAT BLOCK SURF-ACER. APLICATION man MAR. l5. 191B. v n 1 ,273,043 Patented July i6, 1918.

2 SHEETS-bHEET l l INVENTGRS J @ab Mlle/zamora 1717222124 ATTORNEY 1. Mja; w. H. DENSMORE.

MEAT BLOCK SURFACER.

APPLICATION FILED MAR, l5 l9l8.

1,273,048. Patented July 16, 191s.

i san Pn i f' JOSEP M. DENSIVIORE AND WILLIAM I-I. DENSMORE, 0F ASHLAND, OREGON.

MEAT-BLOCK sURFAoER.

` Application filed March 15, 1918. Serial No. 222,633.

and more particularly to vspecial machines for cutting off a worn or damaged surface; and the object of the same is to produce a machine of Vthis type adapted especially to resurface a meat block such as is usedby butchers on which to chop and cut the meat. The surface of these blocks becomes ridged,

uneven, injured, andsome'times split after long use, and they require dressing down as.

by cutting off a part of the upper end of the block so as to re'-surface thesame; and it is the purpose of this invention to devise a machine which may be clamped to a block of this kind and which will support a small electricy motor actuating a suitable tool or tools, in such manner that the motor may bev moved to and fro across the surface and the tools will cut away the worn or damaged portion thereof, leaving a new surface in a manner which will be clear. Yet we might say-at thispoint that although the invention4V is intended particularly'for meat blocks, it"

is quite possiblethat it could be employed to resurface'other articles, perhaps not necessarily of wood.

The invention consists in the structure ofv the machine as hereinafter more fully described and claimed, and as shown `in the drawings, wherein f I Y Figure l is a perspective view of this entire machine, showing it clamped'to one end of a meat block and'its cutting toolv at work on the surface thereof, y

Fig. 2 is an enlarged elevation of the cross head, L y

Fig. 3 Va sectional detail'of the tilting mechanismv for thek disk in said cross head, Fig. 4c is an 'enlarged bottom view of the half nut, l f y Fig. 5 is a section through theA arm and feed screw, and, anelevation of thev feed lever, f

Fig. 6 is a detail partly in section of the gage, Y I

Figs. 7 and 8V are details respectively of `Vthe end cutter and the side cutter.'

Specification of Letters Patent. Y I Patented'Jllly 1.6, 19:18.

The work WV in the-present case is a meat block mounted on upright legs Ly and having an old surface() which is-to be cut away so as t'o leave anew surface N. As well known these blocks are usually formedwith thegrain standing vertical so that the cutting must be done across the grain linstead of with it. Moreover,long use of a vmeat block has saturatedv it with the juices of the arti-l cles chopped and cut thereon, and thewood may be said to-be thoroughly saturated or waterslogged at the upper end or along the upper portion of the block and for a considerable distance down into it. This necesbest-seen in Fig. l of the drawings; and'also we make use of a side cutter shown in Fig. 8 for giving the .finished rounded corner to the block when the work is completed. These toolsJ Tare preferably driven by an velectric motor broadlyindicated by the letter M, the power being supplied thereto by wires in a cable C led vfrom a suitable source of energy not necessary to show; andl it is the mechanism for supporting this motor and this tool or tools andv permitting the same to be moved to and fro in all directions overthe block, which forms the subject matter of the present invention.

An upright cylindrical post l'may have a screw 2 at its lower end to embed the floor at a point adj acentfone end ofthe block W to be treated. Mounted oni-this post are the two arms 3 of a bracket whose inner end may well rest against the Vend'of the block WV, and this end carries a clip 5 through which passes a cross bar 6 threaded atboth ends for thereception of nutsv?. Upon the bar just inside said nuts'a're sleeves 8, each having a finger 9 adapted to be passed over one side of the block, and when the nutsare set up tight these fingers grasp the block W so that the cross bar is clamped firmly there- Fig. 1. At theupper end of the post is a cap l() fromkwhich depend rods l1, 11 ,andV 12, two of the same having turn-buckles 13 within theirV length and beingconnecte'd with the fingers 9,` and the thirdrod 12 passing rovervthe endV of the upper'arm v3 -eaeef'tre-.pest emb'eus the Hoor as geen at 2;

and being connect-'ed with a'h'ook-i 14 inthe lowerarn asse'ei the foreground of Figi 1. Thus the cross bar and bracket are'hel'd at an 7appropriate. height on the4 vpost 1 so that', when the cross bar is gripped to the work W, the bracket and post arelitxed with respect thereto, especially when the lower The numeral 20 designates a swinging bracket having eyes 21 at the inner ends of the,pa -rallel arms of which itis composed, these eyes loosely embracing the upperien'd of the post and the lowermostY resting upon a. collar .22 whichis clampedaround the post at .the' desired heighty as at 233 and therefore whenfthe pestisstrictly vertical vthe bracket mayswing from side to side' a strictly horizontal Dlane.- The bracket is `by preferenceratjher light,- although it should be -well braced-,as itmust carry the parts yet to be referred to.V The youter extremities lof --these arms have veyes 24 in whichl is rotatably mounted .the -upper rL ruunion 25- [ofthe cross- 'head best shownin Fig-.2, the upper end of said trunnion threaded for the .reception of a nut 26 foradjusting Ithe vertical position ofsaidcross head. The` lower trunn-ion is preferably adjustableby meanslof a screw- 27 which embed the old surface of the'gl'jl'ock,` thelscrew ybeing held by a nut 28 as seen in Fig-f2.y

The cross-head may `be said vto embrace a,

frame andadisk.-V .The frame 30 is rigidly interposed between and-may be an integral part of upper' and lower trurinions, land it hasbearing's 3l-,at its, opposite sides.- In these are Tjournaled the tru-unions 8-2 of a disk- 33 standing ypractically iin a vertical planeand fully y:inclosed within the frame. Lips 3 4 depending from ythe upper portion ofthe frameand rising lfrom the loweiI por-v tionop'posite sidesof .the edges of said disk, afford supports for-set screws 35 which are tapped ithrough the lips and have their tipsbearinga'gainst the disk as best seen in l Fig. 3,; andgby 'properlyadjusting these set screws it will bfe obvious -that the exact lposition ofthe disk 4with reference tothe upright plane' ofl the vframe :may be ,regulated togreat nicety. The disk has at about its centena pair of guides 36and adjacent Athe same ahalfnut 37 is pivoted at Ythe Apoint 38 tothediskandhas a handle) for use as described below.

yThe eleCtI'ic motorl M referred :130' above is carried rigidly at `the outerend of an arm which constitutes another element of ithis machine. rlhe garmin ,the present case fhas upper ,and lower tubular lmembers- 40 connected by a web 41,as best seen ins'ection in Eig. 5,'--sol kast-gto give `it'great strength 'and rigidity icensiste-nt `withgits weightaind :this afin ,is slidably :mounted Jllrough the guides 36 iin-the disk.V A screw 42 i's-.swiveledatit's Oifrend atv-'60 in; the motor, .adj acent vwhich it lhas fast Aupon' its body a' ratchet 43?, and loosely mounted on the screwfadj'acent the ratchet is an eye 44 at the inner end of a hand ,lever 45,whli'ch level" carries-a Apawl 46 engaging said ratchet. Vhen now this hand lever isr'eciprocated, it is obvious that the screw will be turned. The screw passes Vlooselythrough the disk and may beenfgaged is' akgage 50 best seen in Fig. 6, the same'by preference having an anti-friction 'ball 51 mounted in a socket ,in vits lower end, and an oil cavity 52 by means -of which lubricant may be supplied to said ballA as 4the latter travels over the new surface N when lusing the tool shown-in Fig.l 8 `for roundingoff the corners. Adjustment of theposition Vof -this gage iseffected by bolts 'andslots as vind-icated at 53.- `The'end cutting toolv 54 yis lbest shown in Fig, 7, its knives 55 extending along the lower :face of the tool and prefer ably 4up its sides as seenat 55 This tool also may beprovided with anti-f riction'ball5'6y lubricated as at 57. The side cutter or corner trimmingtool 5 8is best seen Fig. 8 where an outline of the ,roun ded corner lof the block is shown. Y This tool may wfell carry an anti-friction roller 59 fat its,lo`wer end tol prevent its cutting knives from 'chipping away too ymuch of the work.' Yet I would not be limited to the specific con# struction of. lthe gage and tools, because these of course will depend on :the work to be done. If, as suggested, the machine is e1n= ployed for re-su-rfacing'a meatjb-lock, these tools will Aprobably be useful and in fact necessary.; but if the ymachine is' employed for other work, appropriate'tools .will be' reoluirfe'l. The'use of the machine is'fob'vious. Having vset up the-partsabout as seen in Fig. 1, doubtless, the Ypoint 27 will 4be Y embedded in theold surface O kas shown, the current turned on to :the lmotor M, Aand the arms swung from side to side to cutY away' the surface jand leave the new surface N, the work being done onkan arc or possiblya complete circle andthe motor :and tool being gradually drawn toward tliecross head by manipulatin the ihand Vlever 45 from time'to time;y T e :point 27 can `ithen. be withdrawn from the old surface O and the bracketQO-swung toa vnew position, the half-nut 37 raised, the arm and motor run, out aga-in, andthe work continued in the manner abovedesc'ribed .c ,ff

ycombination with an upright post, a bracket mounted thereon and having a clip, a cross bar extending through said clip and having threaded extremities, nuts on the latter, and a sleeve mounted'on the -bar inside each nut and having a finger; of acollar fast on said post at its upper end, a bracket having eyes mounted on the post above said collar, and a tool carried by said bracket.

2. In a machine of the class described, the combination with an upright post, a bracket mounted thereon and having a clip, a cross bar extending through said clip and having threaded extremities, nuts on the latter, sleeves adjustably mounted on the ends of said cross bar and having lingers to engage the work, a cap at the upper end of the post, and rods depending therefrom to the sleeves and to the bracket; of another bracket loosely mounted to swing around the upper end of the post, and a tool carried by this bracket. n

3. In a machine of the class described, the combination with an upright post, and a work-clamp carried thereby for holding the post adjacent the work; of a bracket mounted to swing around the upper end of the post, a cross head having an upright trunnion swivelly mounted in the outer end of this bracket, guides carried by said cross head, arms slidably mounted through said guides, and a motor and tool carried by said' arms.

4C. In a machine of the class described, the'combination with an upright post, and a work-clamp carried thereby for holding the post adjacent the work; of a bracket mounted to swing around the upperend of the post, a cross head having an upright trunnion swivelly mounted in the outer end of this bracket, a lower trunnion on the cross head adapted to engage the work, a disk mounted within the cross head and having guides, an arm slidably mounted through the latter and carrying a motor and tool, andmeans for tilting the disk.

5.` In a machine of the class described, the combination with an upright post; of a bracket mounted to swing around the upper end of the post, a cross head having an upright trunnion swivelly mounted in the outer end of this bracketa lower trunnion on the cross head adapted to engage the Work, a disk mounted within the cross head and having guides, an arm slidably mounted through the latter and carrying a motor and tool, trunnions at the sides of the disk mounted in bearings in the cross head, spaced lips on the cross head at right angles to the line of the trunnions, and set screws through said lips against opposite sides of the disk.

6. In a machine of the class described, the combination with an upright post, and a work-clamp carried thereby for holding the post adjacent the work; of a bracket mounted to swing around the upper end of the post, a frame having an upper trunnion swivelly mounted in the outer end of said bracket arm and a lower trunnion engaging the work, bearings at the sides of said frame,

ya disk having side trunnions mounted in these bearings, means for tilting the disk and Vsetting it within the frame, guides carried 'by the disk, parallel arms slidably mounted through said guides, means for adjusting them therein, and a motor and tool at the o uter ends of said arms.

7 In a machine of the class described, the combination with an upright support, a bracket mounted to swing around the same, a frame swivelly supported in the outer end of said bracket, and a disk adj ustably mounted Within the frame; of guides through the disk and a hole adjacent them, a pair of arms extending through the guides and carrying a motor at their outer ends, a screw swiveled in the motor casing and extending through said hole, means for manually turning the screw, and a half-nut pivoted to the disk and adapted to set across said hole with its threads in engagement with those on the 8. In a machine of the type described, the combination with an upright support, a bracket mounted to swing around the support, a cross head swivelly mounted in the outer end of the bracket, and an arm adjustable through said cross head; of a motor whose casing is carried at the o-uter end of said arm, a tool on the lower end of the motor-shaft, and a gage adjustably mounted on the motor casing adjacent the tool.

.In testimony whereof we aiiiX our signatures in presence of two witnesses.

JOSEPH M. DENSMORE. 1WILLIAM II. DENSMORE.

Witnesses:

W. J. Moonn, E. M. THAYER.

Goplel n! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. c. 

